Multiply (12-5i)(-3+4i)
Answer:
−16 + 63i
Step-by-step explanation:
Multiply using the FOIL method, then combine the real and imaginary parts of the expression.
Hope this helps! :D
2. Let z represent the unknown number. Write expressions for:
a. A third of the unknown number plus three
b. Four times the unknown number less twice the number
C. The sum of the unknown number and its square
d. The fraction obtained when double the unknown number is divided by the sum of the unknown number and four
Answer:
a. z+3
b. 2z - 4z
c. z + z^2
d. 2z/(z+4)
Hope it helped.
c) 2x(3x + 4)
expand the following:
Answer:
6x^+8x
Step-by-step explanation:
Its a monomial by a binomial, so we need to multiply the 2x with each term in the bracket, and put the sign in the brackets.
final answer: 6x^+8xAnswer:
[tex]6x^{2} +8x[/tex]
Step-by-step explanation:
Multiply 2x into the equation to get [tex]6x^{2} +8x[/tex].
how many solution 7(y+3)=5y+8
Answer:
there is only one it is y=-6.5
Step-by-step explanation:
Urgent help !!
The word "or" in probability implies that we use which operation?
A. Addition
B. Multiplication
C. Multiplication then subtraction
D. Subtraction
Answer:
its c
Step-by-step explanation:
i think im sorry if it wrong this a unusal term for operation
Encuentra el Minimo común múltiplo (m.c.m.) de los sieguentes numeros 12y 15
Answer:
is this question in Spanish ?
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me speak english
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Somebody help please?
Answer:
x=13
Step-by-step explanation:
vertical opposite angles are equal.
Answer:
13
Step-by-step explanation:
THERE THE SAME
Two lengths are shown below: A. 24 inches B. 2 feet. Explain why length A is
equivalent to length B. Use your knowledge of converting inches to feet in
your answer.
I need help plzzz
Answer:
ok cuz evrey 12 inch = 1 feet thank youu
Match the following to the correct solution
Answer:
a/c/z
Step-by-step explanation:
the sum of 4 consecutive integers is -62 write an equation to determine the smallest of the integers
Answer:
x + (x+1) + (x+2) + (x+3) = -62
x = -17
Step-by-step explanation:
x = smallest
x + (x+1) + (x+2) + (x+3) = -62
4x +6 = -62
4x = -68
x = -17
Which values of a, b, and c correctly complete the division? One-fourth divided by StartFraction 5 Over 6 EndFraction = StartFraction 1 Over a EndFraction times StartFraction b Over c EndFraction a = 4, b = 5, c = 6 a = 1, b = 6, c = 5 a = 1, b = 5, c = 6 a = 4, b = 6, c = 5
Answer:
a = 4, b = 6 and c = 5
Step-by-step explanation:
It is given that,
[tex]\dfrac{\dfrac{1}{4}}{\dfrac{5}{6}}=\dfrac{1}{a}\times \dfrac{b}{c}[/tex]
We know that,
[tex]\dfrac{\dfrac{a}{b}}{\dfrac{c}{d}}=\dfrac{a}{b}\times \dfrac{d}{c}[/tex]
So,
[tex]\dfrac{1}{4}\times \dfrac{6}{5}=\dfrac{1}{a}\times \dfrac{b}{c}[/tex]
If we compare both sides of the equation we get,
a = 4, b = 6 and c = 5
Hence, these are the values of a,b and c.
Answer:
The simple and easy answer is D
Step-by-step explanation:
Which fraction is equivalent to 0.018 ? there is a top enclose above 18 so, please help me with that ! thank you so much.
Answer:
9/500
Step-by-step explanation:
how to solve this 58+5x+10=11x+2
Answer:
11 = x
Step-by-step explanation:
58+5x+10 = 11x+2
68+5x = 11x+2
-5x = -5x
68 = 6x+2
-2 -2
66 = 6x
66/6 = 6x/6
11 = x
Hope this helps!
Answer:
x = 11
Step-by-step explanation:
58 + 5x + 10 = 11x + 2
First, combine like terms
68 + 5x = 11x + 2
Subtract 5x from both sides of the equation
68 = 6x + 2
Subtract 2 from both sides of the equatino
66 = 6x
Divide both sides by six to get your answer
11 = x
I hope this helps :)
2x+2a=4b solve for a
Answer:
a=2b-x
Step-by-step explanation:
What do the zero exponent and negative exponents properties mean
Find the 7th term of the arithmetic sequence given a12=29 and
a16=53
a7=___
Answer:
Thus: a7=-1
Step-by-step explanation:
Arithmetic Sequences
The arithmetic sequences are identified because each term is obtained by adding or subtracting a fixed number to the previous term.
The equation to calculate the nth term of an arithmetic sequence is:
[tex]a_n=a_1+(n-1)r[/tex]
We know: a12=29, a16=53, thus
[tex]a_1+(12-1)r=29[/tex]
[tex]a_1+(16-1)r=53[/tex]
Simplifying:
[tex]a_1+11r=29[/tex]
[tex]a_1+15r=53[/tex]
Subtracting both equations:
[tex]4r=53-29=24[/tex]
Solving:
[tex]r=24/4[/tex]
r=6
The 7th term can be found as 5 terms before the 12nd:
[tex]a_7=a_{12}-5r[/tex]
[tex]a_7=29-5*6=29-30=-1[/tex]
Thus: a7=-1
Find the equation of a line that has a slope of m=15 and passes through the point (0, 9).
Answer:
y=15x+9
Step-by-step explanation:
Help me please what is 2+2 please help me.
Answer:
6969694204206969
Step-by-step explanation:
lololololololol
i need help me please :(
It takes 66 pounds of seed to completely plant a 7-acre field.
How many acres can be planted per pound of seed?
acres per pound
Answer:
Approximately 0.11 acres can be planted with one pound of seed
Step-by-step explanation:
You use the rule of 3
66 pounds / 7 acres = ? pounds / 1 acre
? = 66 x 1 ÷ 7
? = 66 ÷ 7
? ≈ 9.23 pounds / acre
Now you know how many pounds you have for 1 acre. You reuse the formula from before
9.23 pounds / 1 acre = 1 pound/ ? acres
? = 1x1 ÷ 9.23
? = 1 ÷ 9.23
? = 0.11 acres/pound
Verify the answer:
0.11 x 9.23 ≈ 9.33, which is approximately 1 pound
Answer:
90 pounds per acre
Step-by-step explanation:
Im right
what is the slope of the line that passes through 2,-1 and 2,-5
Answer:
Undefined.
Step-by-step explanation:
When using the formula y2-y1/x2-x1, the result comes out as -4/0. Any number over a 0 is undefined.
what is 31.4 rounded to the nearest hundredth
Answer: 31.40?
Step-by-step explanation: there isn’t anything in the hundredths place so I’m not exactly sure.
Answer:
31 because 4 is not bigger than 5 so 1 stays the same.
Step-by-step explanation:
Cristian made an ankle bracelet using 6 red beads, 10 green beads, 4 purple beads, and 5 yellow beads. He wants to make a necklace that has the same ratio of color beads as the ankle bracelet. If the necklace has 15 yellow beads, how many purple beads will it have?
Answer:
20 is the answer
Step-by-step explanation:
MARK BRANIEST
18x + 12- 4
I need help ASAP.
Answer:
b
Step-by-step explanation:
Answer:
B and E
Step-by-step explanation:
BRAINLIEST ANSWER! I NEED HELP ASAP!!
Answer:
The answer is in the picture. I believe it is correct :)
Answer:
yep i checked it too its right
helpp ! look at the pic help me asap
what matrix is a result of m x h enter your answer by filling in the boxes enter any fractions as simplified fractions
Answer:
-32/3 16 -16/3
Step-by-step explanation:
I got it wrong and this was the right answer
Answer:
Step-by-step explanation:
Samuel buys 3 4K TVs for $1200 each. There is a shipping charge of $90 to have all 3 TVs delivered to his house
How much does Gordon pay in total?
independent variable:
dependent variable:
function:
solve the function:
Answer:
Note!! if someone else answers, their answer is probably correct. I don't know functions that well. also, I'm assuming here that Samuel and Gordon are the same person.
Gordon/Samuel pays: 3690$
independent variable: the amount of TVs you buy
dependent variable: the cost for each tv
function: f(x) = 1200x + 90
solve the function: hopefully someone else can answer this!
if I made a mistake or misunderstood something, please let me know!
URGENT AND EASY 8TH GRADE MATH
Answer:
k<-62/7
Step-by-step explanation:
I hope it helps.
Answer:
k> 56
Step-by-step explanation:
-35 -k + 6< -85
-29-k < -85
+29 +29
_______________
-k> -56
/-1
k> 56
Identify the property being demonstrated for each expression
3 + (5 + 7) = (3 + 5) + 7
(associative property or commutative)
5 + 0 = 5
(associative property or commutative)
Answer:
1. associative. 2. commutative. 3. identity.
Step-by-step explanation:
hope this helps :)
Answer:
A,B,D
Step-by-step explanation: